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check-ref-format --branch: give Porcelain a way to grok branch shorthand

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The command may not be the best place to add this new feature, but

    $ git check-ref-format --branch "@{-1}"

allows Porcelains to figure out what branch you were on before the last
branch switching.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2009-03-21 14:19:53 -07:00
parent a552de75eb
commit a31dca0393
2 changed files with 22 additions and 0 deletions
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10
builtin-check-ref-format.c
View File

@ -5,9 +5,19 @@
#include "cache.h"
#include "refs.h"
#include "builtin.h"
#include "strbuf.h"
int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
{
if (argc == 3 && !strcmp(argv[1], "--branch")) {
struct strbuf sb = STRBUF_INIT;
strbuf_branchname(&sb, argv[2]);
strbuf_splice(&sb, 0, 0, "refs/heads/", 11);
if (check_ref_format(sb.buf))
die("'%s' is not a valid branch name", argv[2]);
printf("%s\n", sb.buf + 11);
exit(0);
}
if (argc != 2)
usage("git check-ref-format refname");
return !!check_ref_format(argv[1]);